Improvement in tubs for washing-machines



R. H. BOYD.

improvement in Tubs for Washing-Mdchins.

Patented Sep. 10', 1872.

INVENTOR:

WITNESSES:

staves of the tub A,'as indicated at c.

ATENT OFFICE.

ROBERT H. BOYD, OF LONDONDERRY, OHIO.

IMPROVEMENT IN TUBS FOR WASHING-MACHINES.

Specification forming part of Letters Patent No. l3l,%4, dated September10, 1872.

To all whom it may concern:

Be it known that I, ROBERT H. BOYD, of Londonderry, in the. county ofGuernsey and State of Ohio, have invented a certain new and usefulImprovement in Tubs for Washing-Machines, and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing and to the letters of referencemarked thereon. V

, The nature of my invention consists in providing the inner walls andbottom of a tub with a metallic lining, corrugated, and made insections, which are secured and held together with relation to eachother and the body of the tub, as hereinafter described.

To enable others skilled in the art to make and use my invention, I willproceed to describe more fully its construction.

In the accompanying drawing, which forms part of my specification,Figure 1 is a top view of my improvement in tubs for washingmachines.Fig. 2 is a vertical section of the same at line 00 of Fig. 1. Fig. 3 isa similar section at line y of Fig. 1.

A represents an ordinary wash-tub, the inner side walls of which arerecessed from the point e to the bottom. In this recess of the innerwall of the tub is placed a metallic lining, B, corrugated, as shown inFig. 1, the upper edge of the lining being overlapped by the The loweredge of the lining B is provided with a groove or rabbet, indicated atw. Into this rabbet or groove is fitted the outer edge of the bottomlining 0, having corrugations arranged at an oblique angle to lines on ahorizontal plane radiating from the center of the bottom. The depth ofthe corrugations in the side lining B and bottom lining G I leave to thetaste and judgment of the manufacturer. In the center of the bottomlining O is a washer or nut, 01, which is used, in connection with thescrew f, for the purpose of clamping the lining G, at its center, firmlyto the wooden bottom 1) of the tub A. The side lining B and bottomlining O are made in sections, fitting together at lines radiating fromthe center of the tub.

In constructing the metallic lining of the tub I take a sheet of zincand mark it out by means of suitable patterns for the differentsections. Having formed the sections, which should be sufficiently largeto allow for the corrugations, I then, by means of a suitable die forthe side lining, provide the said sections with the desired corrugationsand curve, and recess or rabbet their lower ends. The sections for thebottom are also corrugated through the medium of a suitable die, forminga recess at their inner end for the washer or nut d, the upper surfaceof which is also corrugated, so as to correspond with the corrugationsof the bottom lining. The bottom lining may be formed of a singlecircular sheet; but it will be more practicable to make it in sections,as described. The sections forming the side lining B are placed in therecessed portion of the side walls, and then the sections forming thebottom lining are arranged in position, with their outer ends placed inthe recess at m, and when all the sections are placed in juxtaposition,they are fastened at their inner end to the bottom D of the tub throughthe medium of the nut or washer d and screw f, after which the varioussections are soldered together at their point of union.

Having thus described the nature and construction of my improvement,what I claim as of my invention, is

A tub for washing-machines, the inner side wall and bottom of said tubprovided with a metallic lining, corrugated, and made in sections, whichare secured and held in position with relation to each other and thetub, substantially as hereinbefore described, and for the purpose setforth.

. ROBERT H. BOYD. Witnesses:

Bonr. STEWART, J OHN S. WJLKIN.

